Heidi Klum's Martial Arts Masters

An expectant Heidi Klum was photographed dropping off her three children - Leni, 5, Henry, 4, and Johan, 2 1/2 - at a martial arts center in LA on Tuesday (September 22). A nanny and a family member helped Heidi get the kids into class.

We just saw the German beauty rocking the red carpet with her glorious baby bump in a black strapless number at the 61st Annual Emmy Awards. Will we see the Victoria's Secret model bumpin' it up at red carpet events in the years to come?

"We're outnumbered," the 36-year-old Project Runway host recently said. "Four is perfect. Three is a lot. But four? It's a lot of work. We're hands-on, and we feel like this is what we can handle."

Heidi and her musician hubby Seal are expecting their fourth child - a girl! - next month.